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#4661852 - 02/10/18 11:02 AM supertech synthetic gear lube 75w-90
Fitter30 Offline


Registered: 05/05/13
Posts: 104
Loc: Peace valley, Missouri
Has the APIGL-5 rating have run Mobil 1 in a open differential in a 03 astro van. Should I change brands? It has 200,000 miles on it.

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#4661869 - 02/10/18 11:22 AM Re: supertech synthetic gear lube 75w-90 [Re: Fitter30]
Jimzz Offline


Registered: 10/03/14
Posts: 1148
Loc: NoVA
I have used a lot of super tech 75w90 gear oil with no issue. I say go for it if you need to change. I usually run 100k on a open diff that does not tow much.
_________________________
yup

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#4661886 - 02/10/18 11:34 AM Re: supertech synthetic gear lube 75w-90 [Re: Jimzz]
Speak2Mountain Offline


Registered: 04/07/17
Posts: 347
Loc: Mississippi
Just got my MTF changed w/ST. So much better. Do it.

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#4662122 - 02/10/18 04:23 PM Re: supertech synthetic gear lube 75w-90 [Re: Fitter30]
zuluplus30 Offline


Registered: 11/23/13
Posts: 358
Loc: Fly-over country
It's a good lube. Less than $6 per quart. GL-5, MT-1, J2360, MIL-PRF-2105E. It meets all the right specs.

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#4662195 - 02/10/18 05:38 PM Re: supertech synthetic gear lube 75w-90 [Re: Fitter30]
MolaKule Offline


Registered: 06/05/02
Posts: 19042
Loc: Iowegia - USA
It's basically MAG1 Differential fluid.

Not for use in Manual Transmissions.

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#4662287 - 02/10/18 07:50 PM Re: supertech synthetic gear lube 75w-90 [Re: MolaKule]
Spartanfool Online   content


Registered: 02/10/08
Posts: 263
Loc: Michigan
Originally Posted By: MolaKule
It's basically MAG1 Differential fluid.

Not for use in Manual Transmissions.


Why not? I used it before in my Subaru 5 speed. Did I screw it up?

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#4662398 - 02/10/18 11:14 PM Re: supertech synthetic gear lube 75w-90 [Re: Fitter30]
cos Offline


Registered: 11/21/04
Posts: 1168
Loc: Metro Detroit
Spartanfool,

You might want to try a dedicated manual trans fluid.

I run a mix of Amsoil's MTF and MTG.
_________________________
'18 GMC Terrain
'09 Ford Fusion





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#4662400 - 02/10/18 11:21 PM Re: supertech synthetic gear lube 75w-90 [Re: Spartanfool]
aquariuscsm Online   content


Registered: 12/30/06
Posts: 18183
Loc: Dallas,Tx USA
Originally Posted By: Spartanfool
Originally Posted By: MolaKule
It's basically MAG1 Differential fluid.

Not for use in Manual Transmissions.


Why not? I used it before in my Subaru 5 speed. Did I screw it up?


I think some Subaru's actually spec a GL5 diff fluid in their manual trannies.
_________________________
1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Pennzoil Platinum 0W20



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#4662551 - 02/11/18 07:44 AM Re: supertech synthetic gear lube 75w-90 [Re: aquariuscsm]
Spartanfool Online   content


Registered: 02/10/08
Posts: 263
Loc: Michigan
Originally Posted By: aquariuscsm
Originally Posted By: Spartanfool
Originally Posted By: MolaKule
It's basically MAG1 Differential fluid.

Not for use in Manual Transmissions.


Why not? I used it before in my Subaru 5 speed. Did I screw it up?


I think some Subaru's actually spec a GL5 diff fluid in their manual trannies.


Yes, it is spec'd for GL5.

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#4663315 - 02/11/18 08:01 PM Re: supertech synthetic gear lube 75w-90 [Re: Spartanfool]
MolaKule Offline


Registered: 06/05/02
Posts: 19042
Loc: Iowegia - USA
Originally Posted By: Spartanfool
Originally Posted By: MolaKule
It's basically MAG1 Differential fluid.

Not for use in Manual Transmissions.


Why not? I used it before in my Subaru 5 speed. Did I screw it up?


Not if it is a Subaru with a common sump driveline system.

Ford XT-75W90-QGT Carries a GL-5 rating as well and does have the proper friction modification for manuals', whereas the SuperTech and MAG1 does not.


Edited by MolaKule (02/11/18 08:12 PM)

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